What Does a Scientific Glassblower Do?
Scientific glassblowers shape and repair the flasks, columns and vacuum lines that researchers sketch for them, working heat-resistant glass and quartz at a bench burner or glass lathe in university and company glass shops. Every piece has to hold a vacuum, take heat and fit the rest of the apparatus exactly. Nothing goes back to the lab until it has been checked for strain.
Also known as: Glass Blower
Scientific Glassblower Duties and Responsibilities
The primary responsibilities of a scientific glassblower include:
- Build custom lab glassware such as Schlenk lines, columns and reaction flasks from researchers' sketches.
- Repair cracked or broken glassware, including joints, stopcocks and side arms.
- Shape borosilicate tubing on a glass lathe and at the bench burner.
- Work fused quartz with a hydrogen-oxygen torch for high-temperature and optical parts.
- Anneal finished pieces in a kiln to relieve stress, following set heating and cooling schedules.
- Check each piece under polarized light for strain before returning it to the lab.
- Cut, grind and polish glass with diamond saws, lapping wheels and belt sanders.
- Make glass-to-metal seals and graded seals for vacuum and electrical equipment.
- Estimate time and materials for each order and log jobs for lab billing.
- Clean contaminated glassware safely before repair, following chemical hygiene rules.
Required Skills and Qualifications
To succeed as a scientific glassblower, you will need the following skills and qualifications:
- Lampworking at the bench burner
- Glass lathe operation
- Quartz fabrication with hydrogen-oxygen torches
- Annealing and stress testing
- Reading technical drawings and sketches
- Hand-eye coordination and fine motor control
- Chemical and burn safety
- Patience with slow, exact work
Education and Training
Only a handful of colleges teach scientific glass technology, so the usual route after high school is years of apprenticeship under a senior glassblower. Machining or drafting classes give trainees a head start at the lathe and with researchers' sketches. Reaching the top grade takes years of quartz and lathe work.
Salary and Job Outlook
Typical pay: varies widely for this role, and BLS does not publish pay for it separately. In the wider BLS group it belongs to (Molders, Shapers, and Casters, Except Metal and Plastic), the middle half of earners made $39,280 to $53,000 a year, and the median was $46,170.
Source: U.S. Bureau of Labor Statistics, Occupational Employment and Wage Statistics, May 2025, Molders, Shapers, and Casters, Except Metal and Plastic.
BLS projects employment of molders, shapers and casters (except metal and plastic), the broad group that includes scientific glassblowers, to grow about 6 percent from 2025 to 2035. In fact, the group should see roughly 5,100 openings a year, though scientific glassblowing posts are few and open up mainly when someone retires.
Outlook source: U.S. Bureau of Labor Statistics, Employment Projections, 2025 to 2035, Molders, shapers, and casters, except metal and plastic.